Patent GB-295407-A (GB)
Title: Improvements in machines for polishing and otherwise operating upon paper tubes and bobbins and the like on which yarns or threads are to be wound
IPC: B31C11/02
Filed: 1927-02-08
Abstract: 295,407. O'Neill & Sons, Ltd., S., Pearson, J. E., and Bescoby, B. Feb. 8, 1927. Bobbins, tubes, &c.- In a machine for polishing and otherwise treating paper tubes, bobbins, &c. the three or more spindles a, Figs. 1 and 5, on which the tubes 15 are mounted are supported on a toothed plate d revoluble on a shaft e and adapted to be locked in position between successive movements, the spindles being driven through gear-wheels j, b. The tubes or bobbins are corrugated by means of an adjustably-mounted, cam - operated ridged roller 69, while the conical bases are also smoothed and the ends 99, 100 rounded to produce the tube shown in Fig. 13. If the tubes are cylindrical, one or both ends may be smoothed and rounded. A cutting disc mav be associated with the roller 69. The drive is transmitted from a shaft p through bevel wheels u, w; t, v to shafts x, y, and through bevel wheels z, 1 to a shaft 2 carrying a wheel 3 in gear with a wheel l integral with the wheel j. A wheel 4 formed with a toothed part and a locking wall 5 is mounted on the shaft x and is in gear with a wheel 6 having a hollow 8 corresponding to the wall 5, Fig. 5. The wheel 6 is integral with a wheel 10 gearing with the plate d. The tubes 15 are fed from a hopper 16 which is rocked by a cam 32 on the shaft x so that the lowest tube is guided by wedge fingers 35 on a wire frame 33, Fig. 8, into a depression 17 and is pressed therefrom on to the appropriate spindle a by a finger 39 on a rod 36 actuated by a cam 40 on the shaft p through levers 42, 46, Figs. 1 and 3. The conical surface is polished by a spring-controlled plate 50 having a hollowed groove 51. The smaller ends are rounded or " bull-nosed" by a cup 57 in a block 571 actuated through a lever 63 by a face-cam 62. The basal ends are rounded and polished by the hollowed face 672 of a lever 67 actuated by a cam 66 on the shaft y. The plate 50 may be heated by gas flames 54 and the block 571 by a gas flame 58, Fig. 3. The, part 672 may also be heated. The corrugating roller 69 is freely revoluble on a shaft 691 adjustably mounted in a headstock 77 on a carriage 76, and is pressed against the tube 15 and withdrawn therefrom by cams 70, 71. The headstock 77 may be adjusted relatively to the axis of the spindle e by a screw- and-slot connection 80, 772. To burnish the tube 15 in addition to forming grooves therein the roller 69 may be driven independently, as in Fig. 10 (not shown), or may be braked. The finished tube is stripped from the spindle by a finger 84 on a rod 83 which is moved lengthwise bv a lever 90 and a bowl 91 on the wheel z. The machine shown is arranged so that each revolution of the shaft p will effect the application of a tube 15 to a spindle a in the left-hand lateral position and the removal of a completed tube from the spindle a in the. upper central position, the tubes in the lower central position and in the right-hand lateral position being respectively smoothed and polished and corrugated simultaneously therewith.